CN221097300U - Dustproof structure of oil pressure damper - Google Patents
Dustproof structure of oil pressure damper Download PDFInfo
- Publication number
- CN221097300U CN221097300U CN202323278126.9U CN202323278126U CN221097300U CN 221097300 U CN221097300 U CN 221097300U CN 202323278126 U CN202323278126 U CN 202323278126U CN 221097300 U CN221097300 U CN 221097300U
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- China
- Prior art keywords
- ring
- shock absorber
- dustproof
- outer cylinder
- absorber body
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- 239000006096 absorbing agent Substances 0.000 claims abstract description 52
- 230000035939 shock Effects 0.000 claims abstract description 50
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 239000000428 dust Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000009434 installation Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a dustproof structure of an oil pressure shock absorber, which comprises a shock absorber body, wherein a piston rod is arranged on the shock absorber body, an outer cylinder is fixedly connected to the top end of the piston rod, the outer cylinder is arranged on the outer side of the shock absorber body in a sliding manner, an expansion ring is sleeved at the bottom end of the outer side of the outer cylinder, a receiving ring is fixedly connected to the bottom end of the expansion ring, an annular groove is formed in the inner side of the receiving ring, a rubber dustproof piece is arranged on the inner side of the annular groove and is attached to the outer side wall of the shock absorber body, reinforcing rings are sleeved at the upper and lower positions of the outer side of the rubber dustproof piece, the rubber dustproof piece is arranged between the outer cylinder and the shock absorber body, the rubber dustproof piece has a three-layer dustproof effect, the rubber dustproof piece is connected through a connecting ring, and when the rubber dustproof piece moves along with the outer cylinder, the connecting ring has a deformation trend through corresponding flexible compensation, so that the rubber dustproof piece is attached to the surface of the shock absorber body more tightly, and the higher dustproof effect is ensured.
Description
Technical Field
The utility model relates to the technical field of oil pressure vibration absorbers, in particular to a dustproof structure of an oil pressure vibration absorber.
Background
The oil pressure shock absorber is characterized in that hydraulic damping force is formed by stretching and compressing a piston rod to reciprocate so as to achieve the purpose of vibration reduction, and the oil pressure shock absorber has good vibration reduction damping effect and flexible vibration reduction effect;
In the working process of the oil pressure shock absorber, the piston rod needs to frequently reciprocate in an oil sealing piece, in order to prevent external dust from being stained on the piston, a dustproof cylinder structure is generally arranged on the piston rod in the prior art, if the dustproof cylinder is attached to the outer wall of the shock absorber cylinder body, the movement of the outer wall of the shock absorber cylinder body can generate larger friction and noise, gaps can still be reserved for dust, if a rubber ring is added between the dustproof cylinder and the shock absorber cylinder body for dust prevention, the effect can be improved to a certain extent, but the rubber ring is worn after being used for a long time and is not easy to replace;
Accordingly, a dustproof structure of an oil pressure damper is provided by those skilled in the art to solve the problems set forth in the background art.
Disclosure of utility model
The utility model aims to solve the defects in the prior art and provides a dustproof structure of an oil pressure damper.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides an oil pressure shock absorber dustproof construction, includes the shock absorber body, be provided with the piston rod on the shock absorber body, piston rod top rigid coupling has an outer cylinder, and outer cylinder slides and set up in the shock absorber body outside, outer cylinder outside bottom cover is equipped with the expansion ring, expansion ring bottom rigid coupling has the ring of accepting, accept the intra-annular side and seted up the ring channel, rubber dust keeper is installed to the ring channel inboard, and rubber dust keeper laminating shock absorber body lateral wall, the equal cover in position department is equipped with the strengthening ring about the rubber dust keeper outside, and the strengthening ring outside offsets with the ring channel inner wall.
Preferably, the rubber dustproof piece comprises two dustproof rings and a connecting ring, the two dustproof rings are flexibly connected through the connecting ring, one end of the section of each dustproof ring is of an arc-shaped structure and abuts against the outer wall of the shock absorber body, the section of each connecting ring is of an arc-shaped strip-shaped structure, and the arc-shaped vertex of each connecting ring abuts against the outer wall of the shock absorber body.
Preferably, the expansion ring outside cover is equipped with the staple bolt, the staple bolt comprises two semi-rings, two symmetry is provided with the inserted bar between the semi-ring inboard, preformed hole and reservation groove have been seted up respectively on expansion ring and the outer cylinder, inserted bar one end runs through preformed hole on the expansion ring and inserts in locating the reservation groove on the outer cylinder, two the semi-ring both ends are all symmetry provided with the installation piece, and fix through fixing bolt between two installation pieces of symmetry setting.
Preferably, the reinforcing ring is provided with a first annular bulge on the inner side, a first annular groove is formed in the outer side of the dust-proof ring, and the first annular bulge is clamped on the inner side of the first annular groove.
Preferably, the conical ring is fixedly connected to the bottom end of the bearing ring, an annular clamping groove is formed in the bottom end of the conical ring, a conical silica gel ring is bonded through the annular clamping groove, and the bottom end of the conical silica gel ring is attached to the outer wall of the shock absorber body.
Preferably, the top end of the bearing ring is provided with a second annular bulge, the bottom end of the outer cylinder is provided with a second annular groove, the second annular bulge is clamped in the second annular groove, and the inner side of the expansion ring is embedded with a sealing ring.
Compared with the prior art, the utility model has the beneficial effects that:
According to the technical scheme, the rubber dustproof piece is arranged between the outer cylinder and the shock absorber body, the rubber dustproof piece has a three-layer dustproof effect, the rubber dustproof piece is connected and designed through the connecting rings, when the rubber dustproof piece moves along with the outer cylinder, the connecting rings can have a deformation trend through corresponding flexible compensation, and are enabled to be clung to the surface of the shock absorber body, so that a higher dustproof effect is guaranteed, the contact surface of the rubber dustproof piece is in arc contact with the shock absorber body, friction is reduced to the greatest extent, meanwhile, the related structure is convenient to install and detach through the anchor ear, and corresponding parts are convenient to replace in the later period.
Drawings
In order to more particularly and intuitively illustrate an embodiment of the present invention or a technical solution in the prior art, a brief description of the drawings is provided below, which are required to be used in the description of the embodiment or the prior art.
FIG. 1 is a schematic diagram of a structure according to the present utility model;
FIG. 2 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
FIG. 3 is a schematic cross-sectional view of a dust-proof rubber member according to the present utility model;
fig. 4 is a schematic diagram of a hoop structure according to the present utility model.
In the figure: 1. a damper body; 2. a piston rod; 3. an outer cylinder; 4. an expansion ring; 5. a receiving ring; 6. an annular groove; 7. a rubber dust-proof member; 71. a dust-proof ring; 72. a connecting ring; 8. a reinforcing ring; 81. a first annular projection; 9. a hoop; 10. a rod; 11. a mounting block; 12. a fixing bolt; 13. a conical ring; 14. a conical silica gel ring; 15. a second annular projection; 16. and (3) a sealing ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-4, an oil pressure shock absorber dustproof structure comprises a shock absorber body 1, a piston rod 2 is arranged on the shock absorber body 1, an outer cylinder 3 is fixedly connected to the top end of the piston rod 2, the outer cylinder 3 is slidably arranged on the outer side of the shock absorber body 1, an expansion ring 4 is sleeved at the bottom end of the outer side of the outer cylinder 3, a receiving ring 5 is fixedly connected to the bottom end of the expansion ring 4, an annular groove 6 is formed in the inner side of the receiving ring 5, a rubber dust-proof piece 7 is arranged in the inner side of the annular groove 6, the rubber dust-proof piece 7 is attached to the outer side wall of the shock absorber body 1, reinforcing rings 8 are sleeved at the upper and lower positions of the outer side of the rubber dust-proof piece 7, and the outer side of the reinforcing rings 8 are propped against the inner wall of the annular groove 6;
According to the technical scheme, the rubber dust-proof piece 7 is arranged between the outer cylinder 3 and the shock absorber body 1, so that dust can be effectively prevented from entering the inner space of the outer cylinder 3 to pollute the piston, gaps exist between the outer cylinder 3 and the shock absorber body 1, the arc-shaped surface of the rubber dust-proof piece 7 is only used for contacting the outer surface of the shock absorber body 1, and friction generated when the outer cylinder 3 moves along with the piston rod 2 is reduced to the greatest extent.
The rubber dustproof piece 7 consists of two dustproof rings 71 and a connecting ring 72, the two dustproof rings 71 are flexibly connected through the connecting ring 72, one end of the cross section of each dustproof ring 71 is of an arc-shaped structure and abuts against the outer wall of the damper body 1, the cross section of each connecting ring 72 is of an arc-shaped strip-shaped structure, and the arc-shaped vertex of each connecting ring abuts against the outer wall of the damper body 1;
The technical scheme that adopts above, two dust-proof rings 71 are constituteed through the go-between 72 that the cross-section is arched before, when outer cylinder 3 moves down, the dust-proof ring 71 of downside moves on shock absorber body 1 surface, there is upward movement trend because of the frictional action, thereby can extrude the dust-proof ring 71 of go-between 72 top, make its micro-deformation, thereby make the more tight shock absorber body 1 surface of go-between 72 arcwall face and top dust-proof ring 71 cambered surface, improve dustproof effect, in the same way, when outer cylinder 3 moves up, the dust-proof ring 71 of top also can exert pressure to the go-between 72 arcwall face.
The outer side of the expansion ring 4 is sleeved with a hoop 9, the hoop 9 consists of two semi-rings, inserting rods 10 are symmetrically arranged between the inner sides of the two semi-rings, a preformed hole and a preformed groove are respectively formed in the expansion ring 4 and the outer cylinder 3, one end of each inserting rod 10 penetrates through the preformed hole in the expansion ring 4 and is inserted into the preformed groove in the outer cylinder 3, mounting blocks 11 are symmetrically arranged at two ends of the two semi-rings, and the two symmetrically arranged mounting blocks 11 are fixed through fixing bolts 12;
The technical scheme that adopts above, staple bolt 9 comprises two semi-rings, and when two semi-rings were merged, the inserted link 10 at its inboard middle part can insert on outer cylinder 3 to the position of expansion ring 4 now makes two semi-rings constitute staple bolt 9 structure through fixing bolt 12, thereby accomplishes the fixed of expansion ring 4, and this mode is convenient for the dismantlement of later stage expansion ring 4, thereby changes whole or worn and torn rubber dust keeper 7.
The inner side of the reinforcing ring 8 is provided with a first annular bulge 81, the outer side of the dustproof ring 71 is provided with a first annular groove, and the first annular bulge 81 is clamped on the inner side of the first annular groove;
in the above technical solution, the reinforcing ring 8 is a metal member, and is used for fixing the positions of the upper and lower ends of the outer side of the rubber dust-proof member 7.
The bottom end of the receiving ring 5 is fixedly connected with a conical ring 13, an annular clamping groove is formed in the bottom end of the conical ring 13, a conical silica gel ring 14 is bonded through the annular clamping groove, and the bottom end of the conical silica gel ring 14 is attached to the outer wall of the shock absorber body 1;
According to the technical scheme, one end of the cross section of the conical silica gel ring 14, which is close to the shock absorber body 1, is of an inclined structure, and the inclined structure is in contact with the outer wall of the shock absorber body 1, so that dust and impurities stained on the shock absorber body 1 can be scraped off preferentially through the conical silica gel ring 14 when the outer cylinder 3 moves.
The top end of the receiving ring 5 is provided with a second annular bulge 15, the bottom end of the outer cylinder 3 is provided with a second annular groove, the second annular bulge 15 is clamped in the second annular groove, and the inner side of the expansion ring 4 is embedded with a sealing ring 16;
The above technical solution is adopted, and the tightness of the installation between the expansion ring 4 and the outer cylinder 3 can be further enhanced by the action of the second annular protrusion 15 and the sealing ring 16.
Working principle:
When the outer cylinder 3 moves up and down along with the piston rod 2, the bearing ring 5 can preferably scrape dust and soil on the shock absorber body 1 by the conical silica gel ring 14 on the conical ring 13 at the bottom end of the bearing ring when moving down, a certain dustproof effect is achieved, then the rubber dust-proof piece 7 on the inner side of the bearing ring 5 can be tightly clung to the surface of the shock absorber body 1 and slide, and the rubber dust-proof piece 7 is contacted through the arc end surface, no larger friction noise is generated, the rubber dust-proof piece 7 is composed of two dust-proof rings 71 and a connecting ring 72, the cross section shape of the rubber dust-proof piece is shown in the attached drawing, no matter the cross section shape of the rubber dust-proof piece is upwards or downwards, the connecting ring 72 can be stressed, the rubber dust-proof piece is clung to the surface of the shock absorber body 1, a better dustproof effect is achieved, and the expansion ring 4 and the bearing ring 5 can be installed and detached through the anchor clamps 9, so that corresponding parts can be replaced at the later stage.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides an oil pressure shock absorber dustproof construction, includes shock absorber body (1), a serial communication port, be provided with piston rod (2) on shock absorber body (1), piston rod (2) top rigid coupling has outer cylinder (3), and outer cylinder (3) slip sets up in shock absorber body (1) outside, outer cylinder (3) outside bottom cover is equipped with expansion ring (4), expansion ring (4) bottom rigid coupling has and accepts ring (5), accept ring (5) inboard annular groove (6) have been seted up, rubber dust (7) are installed to annular groove (6) inboard, and rubber dust (7) laminating shock absorber body (1) lateral wall, all cover in position department is equipped with strengthening ring (8) about rubber dust (7) outside, and strengthening ring (8) outside offsets with annular groove (6) inner wall.
2. The dustproof structure of the oil pressure damper according to claim 1, wherein the rubber dustproof piece (7) is composed of two dustproof rings (71) and a connecting ring (72), the two dustproof rings (71) are flexibly connected through the connecting ring (72), one end of the cross section of each dustproof ring (71) is of an arc-shaped structure and abuts against the outer wall of the damper body (1), the cross section of each connecting ring (72) is of an arc-shaped strip-shaped structure, and the arc-shaped vertex of each connecting ring abuts against the outer wall of the damper body (1).
3. The dustproof structure of the oil pressure shock absorber according to claim 1, wherein the outer side of the expansion ring (4) is sleeved with a hoop (9), the hoop (9) is composed of two semi-rings, inserting rods (10) are symmetrically arranged between the inner sides of the two semi-rings, reserved holes and reserved grooves are respectively formed in the expansion ring (4) and the outer cylinder (3), one end of each inserting rod (10) penetrates through the reserved hole in the expansion ring (4) and is inserted into the reserved groove in the outer cylinder (3), mounting blocks (11) are symmetrically arranged at two ends of each semi-ring, and the two symmetrically arranged mounting blocks (11) are fixed through fixing bolts (12).
4. The dustproof structure of the oil pressure damper according to claim 2, wherein a first annular protrusion (81) is arranged on the inner side of the reinforcing ring (8), a first annular groove is formed on the outer side of the dustproof ring (71), and the first annular protrusion (81) is clamped on the inner side of the first annular groove.
5. The dustproof structure of the oil pressure shock absorber according to claim 1, wherein the bottom end of the receiving ring (5) is fixedly connected with a conical ring (13), an annular clamping groove is formed in the bottom end of the conical ring (13), a conical silica gel ring (14) is bonded through the annular clamping groove, and the bottom end of the conical silica gel ring (14) is attached to the outer wall of the shock absorber body (1).
6. The dustproof structure of the oil pressure shock absorber according to claim 5, wherein a second annular protrusion (15) is arranged at the top end of the bearing ring (5), a second annular groove is formed in the bottom end of the outer cylinder (3), the second annular protrusion (15) is clamped in the second annular groove, and a sealing ring (16) is embedded in the inner side of the expansion ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323278126.9U CN221097300U (en) | 2023-11-29 | 2023-11-29 | Dustproof structure of oil pressure damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323278126.9U CN221097300U (en) | 2023-11-29 | 2023-11-29 | Dustproof structure of oil pressure damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221097300U true CN221097300U (en) | 2024-06-07 |
Family
ID=91318909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323278126.9U Active CN221097300U (en) | 2023-11-29 | 2023-11-29 | Dustproof structure of oil pressure damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221097300U (en) |
-
2023
- 2023-11-29 CN CN202323278126.9U patent/CN221097300U/en active Active
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